Would it be possible to get a Wireshark capture of the traffic between Ignition and the PLC? From what I can tell in the logs the server is returning some identical browse results, but that’s not something I’ve seen before…
2021/11/11 16:46:07:142 | DEBUG | [DataTypeDictionaryReader ] structCodecs.size()=235
2021/11/11 16:46:07:142 | DEBUG | [DataTypeDictionaryReader ] enumCodecs.size()=26
2021/11/11 16:46:07:071 | DEBUG | [DataTypeDictionaryReader ] Reading DataTypeDictionary nodeId=NodeId{ns=0, id=7617}
2021/11/11 16:46:07:071 | DEBUG | [DataTypeDictionaryReader ] Browse finished with 3 references
2021/11/11 16:45:33:477 | DEBUG | [DataTypeDictionaryReader ] structCodecs.size()=235
2021/11/11 16:45:33:477 | DEBUG | [DataTypeDictionaryReader ] enumCodecs.size()=26
2021/11/11 16:45:33:431 | DEBUG | [DataTypeDictionaryReader ] Reading DataTypeDictionary nodeId=NodeId{ns=0, id=7617}
2021/11/11 16:45:33:431 | DEBUG | [DataTypeDictionaryReader ] Browse finished with 3 references
2021/11/11 16:41:53:992 | DEBUG | [DataTypeDictionaryReader ] structCodecs.size()=235
2021/11/11 16:41:53:992 | DEBUG | [DataTypeDictionaryReader ] enumCodecs.size()=26
2021/11/11 16:41:53:868 | DEBUG | [DataTypeDictionaryReader ] Reading DataTypeDictionary nodeId=NodeId{ns=0, id=7617}
2021/11/11 16:41:53:868 | DEBUG | [DataTypeDictionaryReader ] Browse finished with 3 references
You would need to ensure there is no security for the connection, then start the Wireshark capture, then edit/save the connection in Ignition, and once it has fully connected you can stop the capture.